Similarity - WordPress.com...2017/05/04 · He wants the distance from the Sun to Jupiter to be 8...
Transcript of Similarity - WordPress.com...2017/05/04 · He wants the distance from the Sun to Jupiter to be 8...
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Similarity Question Paper 2
Level IGCSE
Subject Maths
Exam Board Edexcel
Topic Shape, Space and Measures
Sub Topic Similarity
Booklet Question Paper 2
Time Allowed: 57 minutes
Score: /47
Percentage: /100
Grade Boundaries:
A* A B C D E U
>85% 75% 70% 60% 55% 50% <50%
1 In the diagram, DAPS and CBQR are straight lines.AB is parallel to QP and DC is parallel to RS.AD = 11 cm, BC = 5 cm, PS = 27.5 cm and RS = 42.5 cm.
Quadrilateral ABCD is similar to quadrilateral PQRS.
(a) Find the ratio of the length of AB to the length of PQ.Give your answer in the form 1 : n
1 : . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(2)
(b) Work out the length of RQ.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . cm(2)
Diagram NOT accurately drawn
C
Q
A5 cm11 cm
42.5 cm
R
B
D
27.5 cm
P
S
(c) Work out the length of CD.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . cm(2)
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The area of quadrilateral ABCD is 54 cm2
(d) Work out the area of quadrilateral PQRS.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . cm2
(2)
(Total for Question 1 is 8 marks)
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2 The diagram shows triangle ADC.
E is a point on AD and B is a point on AC so that EB is parallel to DC.AB = 14 cm.EB = 16 cm.DC = 20 cm.
Calculate the length of BC.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . cm
(Total for Question 2 is 3 marks)
A
CD
BE
Diagram NOT accurately drawn
16 cm
14 cm
20 cm
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3 Rob is making a scale model of the Solar System on the school field. He wants the distance from the Sun to Jupiter to be 8 metres on his scale model.
The real distance from the Sun to Jupiter is 7.8 × 108 kilometres.
(a) Find the scale of the model.Give your answer in the form 1: n, where n is written in standard form.
1: .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(3)
Rob wants to put the position of a space probe on the scale model. The real distance of the space probe from the Sun is 1.9 × 1010 kilometres, correct to 2 significant figures.
(b) Work out the maximum distance of the space probe from the Sun on the scale model.Give your answer in metres.
.. . . . . . . . . . . . . . . . . . . . . . . . . . . m(3)
(Total for Question 3 is 6 marks)
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4
Zane buys mineral water in large bottles and in small bottles.The large bottles are mathematically similar to the small bottles.Large bottles have a height of 32 cm and a volume of 2000 cm3
Small bottles have a volume of 500 cm3
Work out the height of a small bottle.Give your answer correct to 3 significant figures.
2000 cm3 500 cm3
Diagram NOT accurately drawn
3232
.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . cm
(Total for Question 4 is 3 marks)
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5
B E
D
A10 cm
9 cm
13.5 cm
17 cm
Diagram NOT accurately drawn
C
In the diagram ABC and ADE are straight lines.BD is parallel to CE.
AB = 9 cm, BC = 13.5 cm, AD = 10 cm, BD = 17 cm
(a) Calculate the length of CE.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . cm(2)
(b) Calculate the length of DE.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . cm(2)
The area of triangle ABD is 36 cm2
(c) Calculate the area of quadrilateral BDEC.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . cm2
(3)
(Total for Question 5 is 7 marks)
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6 The ocean liner Queen Mary 2 is the longest of its type.It has a length of 345 metres.
A scale model is made of the Queen Mary 2The scale of the model is 1 : 200
Work out the length of the scale model.Give your answer in centimetres.
.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . cm
(Total for Question 6 is 3 marks)
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7 L and M are two mathematically similar prisms.
3cm 20cm8cm
ML
Diagram NOT accurately drawn
Prism L has length 8 cm. Prism M has length 20 cm.
Prism L has height 3 cm.
(a) Work out the height of prism M.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . cm(2)
Prism M has a volume of 1875 cm3
(b) Work out the volume of prism L.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . cm3
(2)
(Total for Question 7 is 4 marks)
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8 PQRS and PLMN are similar quadrilaterals.
PN = 12 cm, NS = 8 cm, PL = 9 cm and RS = 13.5 cm.
LM is parallel to QR and MN is parallel to RS.
QR
SNP
L M
12 cm
9 cm
8 cm
13.5 cm
Diagram NOT accurately drawn
(a) Work out the length of MN.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . cm(2)
(b) Work out the length of LQ.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . cm(2)
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The area of PLMN is A cm2
The area of PQRS is kA cm2
(c) Find the value of k.
k = .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(1)
The area of the shaded region is 105.6 cm2
(d) Work out the value of A.
A = .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(3)
(Total for Question 8 is 8 marks)
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9
ACE and BCD are straight lines.AB is parallel to DE.
(a) Calculate the length of CD.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .cm(2)
(b) Calculate the length of AB.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .cm(2)
The area of triangle ABC = T cm2
(c) Find the area of triangle CDE in terms of T.
Diagram NOT accurately drawn
BA
C
18 cmD
10 cm
E
4 cm 5 cm
... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .cm2
(1)
(Total for Question 9 is 5 marks)
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